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Products  |  Engineering Mechanics and Machine Elements  |  Strength of Materials  |  FL 151
FL 151 Multi-Channel Measurement Amplifier Show data sheet (pdf file) Print page
Technical Description

  Stresses and strains occurring in components are determined in experimental stress and strain analysis by measuring strain. In industry, strain is often recorded by strain gauges. Since strain gauges deliver only small analogue measurement signals, the signals must be amplified in measurement amplifiers. Then they are converted into digital pulses and displayed as measured strain. These strains may also be evaluated and processed on computer.

  FL 151 is a multi-channel measurement amplifier which supplies the strain gauge bridge circuits with power and processes the received measurement signals. The unit can only be operated with a computer. The measurement amplifier includes 16 input channels and, by using a measuring point add-on unit (FL 151.01), can be extended to a maximum of 32 input channels. The strain gauge measuring points are connected to associated balance potentiometers either by a 68-pin multiport or 16 (6-pin) single ports.

  The multi-channel measurement amplifier is operated via USB using the supplied software. The measured values can be read and saved on computer (using an application such as MS Excel).

Learning Objectives / Experiments

- amplification and display of signals from strain

  gauge measuring points
- processing of measured values on computer
- evaluation of stress and strain analysis

  experiments, in conjunction with: FL 120, FL 130,

  FL 140
- evaluation of experiments relating to forces in

  trusses, in conjunction with: SE 130, SE 110.21,

  SE 110.22


* 16 input channels for processing of analogue strain

  gauge measuring signals1
* Measuring point extension to max. 32 input channels

* Easy strain gauge connection by multi-pin input port

  or single ports1
* Suitable for computerised data acquisition1
* Integrated software for experimental units FL 120,

  FL 130, FL 1401
* Communication with computer via USB

Available accessories
FL 151.01 -- 16-Channel Measuring Point Add-On for FL 151
FL 151 Recording and Evaluation of Strain Gauge Signals

[1] multi-channel measurement amplifier for processing of strain gauge signals
[2] strain gauge connection in half or full bridge configuration
[3] strain gauge connection via 6-pin single ports or 68-pin multiports
[4] extension of measuring points possible with FL 151.01
[5] processing of measured values on a PC

[6] connection to the PC via USB
[7] integrated software for experimental units FL 120, FL 130, FL 140
[8] system requirement: Windows XP or Windows Vista

Technical Data


- number of input channels: 16
- with FL 151.01 measuring point add-on unit:

  max. 32 input channels

DMS connection in half or full bridge configuration
- resistance: min. 350 Ohm/DMS
- zero balancing: 20x spindle trimmer
- strain gauge supply voltage: +/-5VDC

Frequency range selectable via bridges
- 4Hz / 500Hz (-3dB)

Input voltage: max. +/- 50mV

Dimensions and Weight
LxWxH: 370x315x160mm
Weight: approx. 7kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Scope of Delivery
1 multi-channel measurement amplifier
1 software CD
1 USB cable
1 instruction manual
Order Details

021.15100  FL 151  Multi-Channel Measurement 

© 2005 G.U.N.T. Gerätebau GmbH